Sensor including protruding surface

A sensor configured to detect a predetermined physical quantity, comprising:

• a substrate including a top surface;
• a support member disposed on the substrate;
• and
• a sensor element configured to change in a physical property depending on the predetermined physical quantity, wherein
• the support member includes a protruding surface protruding in a direction away from the top surface of the substrate and including at least one inclined surface,
• the sensor element includes a functional layer constituting at least a part of the sensor element,
• the functional layer is disposed on the at least one inclined surface, and
• a dimension of the protruding surface in a direction perpendicular to the top surface of the substrate is in a range from 1.4 μm or more to 3.0 μm or less.